“I don’t know what percentage it was, but it wasn’t full speed or anywhere near it,” said Wacha. “It was just first time back on the mound, getting a feel for the mound and the mechanics, as well.”

Besides fastballs, Wacha mixed in four or five changeups to the session. He is unclear as to what will be next, but will be evaluated by medical staff on Monday.

“It’s going to be doing the whole pictures as well. Think they’ll just compare them–compare to the other pictures and see how, I guess if it’s still healing or getting worse. That’s the main checkout point on Monday.”

Multiple bullpens will still be needed before Wacha is ready to move out on a rehab assignment, which could be more challenging as the minor league seasons are winding down.

Memphis (AAA) finishes their season on September 1st, but the Redbirds are tied for a six-game lead atop their division which could provide post-season opportunities for Wacha to get a start.